<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ name: 'welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <!-- 为 ECharts 准备一个具备大小（宽高）的 DOM -->
      <div id="main" style="width: 600px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
import * as echarts from 'echarts'
import _ from 'lodash'
import { getFoldLinePicAPI } from '@/api'
export default {
  name: 'DataReport',
  data() {
    return {
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  methods: {},
  async mounted() {
    var myChart = echarts.init(document.getElementById('main'))
    // 指定图表的配置项和数据
    try {
      const { data } = await getFoldLinePicAPI()
      if (data.meta.status !== 200) {
        return this.$message.error('获取报表失败')
      }
      //   console.log(data)
      const newObj = _.merge(data.data, this.option)
      myChart.setOption(newObj)
    } catch (error) {
      this.$message.error('获取折线图数据失败')
    }

    // 使用刚指定的配置项和数据显示图表。
  }
}
</script>

<style scoped lang="less"></style>
